Std Dev

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ldelgad8

Icrontic Convert

15 Posts

27 Sep 2007, 11:34pm

I'm new to Matlab(student) and am trying to generate a matrix that takes results from 3 exams for n students

Student ID
generate ID's for n students with numbers between 1000 and 9999, evenly distrubed.

Exam 1
Mean =68
StdDev=17

Exam 2
Mean=75
Std Dev=15

Exam 3
Mean=82
Std Dev=19

How would I go about generating the data for the 3 exams

Thanks
ld

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shwaip

elaborate bot

5,729 Posts

27 Sep 2007, 11:46pm

randn(m,n) will generate a zero-mean, unit variance normal m x n matrix.
rand(m,n) will generate a uniform distribution [0,1] m x n matrix.

Hopefully that's enough to get you on your way... let me know if you need more info.

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ldelgad8

Icrontic Convert

15 Posts

29 Sep 2007, 12:22am

Quoting shwaip

randn(m,n) will generate a zero-mean, unit variance normal m x n matrix.
rand(m,n) will generate a uniform distribution [0,1] m x n matrix.

Hopefully that's enough to get you on your way... let me know if you need more info.

Thank you very much, it did get me on my way and was able to complete my project.

Thanks again

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